US8717439B2 - Surveillance system and method - Google Patents

Surveillance system and method Download PDF

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Publication number
US8717439B2
US8717439B2 US13/077,997 US201113077997A US8717439B2 US 8717439 B2 US8717439 B2 US 8717439B2 US 201113077997 A US201113077997 A US 201113077997A US 8717439 B2 US8717439 B2 US 8717439B2
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motion
target region
sensors
motion sensors
image capture
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US20120075468A1 (en
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Kang Wu
Bo Tian
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Hangzhou Hikvision Digital Technology Co Ltd
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Assigned to PATHUNT IP MANAGEMENT LIMITED reassignment PATHUNT IP MANAGEMENT LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY(SHENZHEN) CO., LTD.
Assigned to HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD. reassignment HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PATHUNT IP MANAGEMENT LIMITED
Assigned to HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD. reassignment HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD. CORRECTIVE ASSIGNMENT TO CORRECT THE CITY FOR RECEIVING PARTY SHOULD BER HANGZHOU ZHEJIANG PREVIOUSLY RECORDED AT REEL: 063847 FRAME: 0596. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: PATHUNT IP MANAGEMENT LIMITED
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/188—Capturing isolated or intermittent images triggered by the occurrence of a predetermined event, e.g. an object reaching a predetermined position

Definitions

  • Embodiments of the present disclosure relate generally to surveillance technologies, and more particularly, to a surveillance system and method.
  • Video surveillance systems are widely used in security systems to monitor areas requiring protection. However, it is common for such systems to have blind spots, such as below or behind a camera. In some cases, a plurality of cameras may be used to try to prevent blind spots but this is a costly solution. In other systems, a camera may be powered to constantly pan and tilt to eliminate blind spots, but this uses much power and is still subject to at least temporary blind spots.
  • FIG. 1 is a block diagram of one embodiment of a surveillance system.
  • FIG. 2 is a schematic diagram illustrating one example of placement of an image capture device and four motion sensors of the surveillance system of FIG. 1 in an area to be monitored.
  • FIG. 3 is a flowchart of one embodiment of a surveillance method using the devices of FIG. 1 .
  • FIG. 1 is a block diagram of one embodiment of a surveillance system.
  • the surveillance system includes a monitoring station 1 , an actuator 2 , an image capture device 3 , and a plurality of motion sensors 4 .
  • the monitoring station 1 includes a processor 10 , a storage system 11 , a display screen 12 , and a monitoring unit 100 .
  • the monitoring unit 100 includes a detection module 101 , a determination module 102 , a control module 103 , and an image capture module 104 .
  • Those modules may include one or more computerized instructions in the form of one or more programs that are stored in the storage system 11 or a computer-readable medium of the monitoring station 1 , and executed by the processor 10 to perform operations of the monitoring station 1 .
  • module refers to logic embodied in hardware or firmware, or to a collection of software instructions, written in a programming language, such as, Java, C, or Assembly.
  • One or more software instructions in the modules may be embedded in firmware, such as EPROM.
  • the modules described herein may be implemented as either software and/or hardware modules and may be stored in any type of computer-readable medium or other storage device.
  • the monitoring station 1 electronically communicates with the actuator 2 , the image capture device 3 , and each of the motion sensors 4 through electrical or wireless connections.
  • the actuator 2 may be a servomotor.
  • the image capture device 3 may be a charge coupled device (CCD) camera, a video camera, or a digital camera that can capture images of a monitored area even in low light conditions.
  • the actuator 2 and the image capture device 3 may constitute a pan/tilt/zoom (PTZ) camera 20 that can pan, tilt, and rotate under control of the monitoring station 1 .
  • PTZ pan/tilt/zoom
  • the image capture device 3 may be driven by the actuator 2 to move and capture real-time images of the portion of the monitored area where the motion is detected.
  • the monitoring station 1 may be a computer, a server, or other computing device used to monitor the monitored area in cooperation with the actuator 2 , the image capture device 3 , and the motion sensors 4 . It should be apparent that FIG. 1 is only one example of the monitoring station 1 that can be included with more or fewer components than shown in other embodiments, or a different configuration of the various components.
  • the storage system 11 stores one or more programs, such as programs of an operating system, and other applications of the monitoring station 1 .
  • the storage system 11 may be random access memory (RAM) for temporary storage of information, and/or a read only memory (ROM) for permanent storage of information.
  • the storage system 11 may also be an external storage device, such as a hard disk, a storage card, or a data storage medium.
  • the processor 10 executes computerized operations of the monitoring unit 1 and other applications, to provide functions of the monitoring station 1 .
  • Each of the motion sensors 4 is located at a position that allows detection of motion in a target region of the monitored area.
  • the monitored area is divided into four target regions A, B, C, and D.
  • the motion sensors 4 may be respectively located to cover each of the regions.
  • each of the motion sensors 4 may include one or more passive infrared (PIR) sensors, sound sensors, or dual-technology devices that comprise both a PIR sensor and a sound sensor.
  • PIR passive infrared
  • the detection module 101 is operable to detect presence of motion in the monitored area in real-time using the motion sensors 4 .
  • the motion sensor 4 may send a trigger signal to the monitoring station 1 to inform the monitoring station 1 a moving object has been detected entering the monitored area.
  • the determination module 102 is operable to determine a target region in the monitored area where the motion is detected according to which of the motion sensors 4 detects the motion, when the motion is detected. In one embodiment, as shown in FIG. 2 , the determination module 102 may determine in which target region A, B, C, D the motion is detected. For example, if the motion is detected by one of the motion sensors 4 that is located in the target region B, the determination module 102 determines that the motion is detected in the target region B.
  • the control module 103 is operable to send a control signal to the actuator 2 according to the target region where the motion is detected, to control the image capture device 3 to aim at the target region, such as the target region A, B, C, D, in which the motion is detected, using the actuator 2 .
  • control module 103 may send a control signal to the actuator 2 to control the image capture device 3 to pan, tilt, or rotate to orient onto the target region A, so as to capture real-time images of the target region A.
  • the motion sensors 4 are prioritized according to predetermined importance of each motion sensor 4 , so that when two or more of the motion sensors 4 simultaneously detect motion, the control module 103 preferentially controls the image capture device 3 to aim at a coverage region of the activated motion sensor 4 having the higher priority.
  • the image capture module 104 is operable to capture real-time images of the target region where the motion is detected using the image capture device 3 , and store the captured images in the storage system 11 . Additionally, if the monitored area needs to be viewed, the image capture module 104 further displays the captured images on the display screen 12 .
  • FIG. 3 is a flowchart of one embodiment of a surveillance method using the surveillance system of FIG. 1 .
  • additional blocks may be added, others removed, and the ordering of the blocks may be changed.
  • the detection module 101 detects presence of motion in a monitored area in real-time using the motion sensors 4 .
  • the determination module 102 determines a target region in the monitored area where the motion is detected according to which of the motion sensors 4 detects the motion.
  • control module 103 sends a control signal to the actuator 2 according to the target region where the motion is detected.
  • the actuator 2 controls the image capture device 3 to aim at the target region according to the control signal.
  • the image capture device 3 may be controlled to aim at the target region B of FIG. 2 when the motion is detected in the target region B.
  • the motion sensors 4 are prioritized according to predetermined importance of each motion sensor 4 , so that when two or more of the motion sensors 4 simultaneously detect motion, the control module 103 preferentially controls the image capture device 3 to aim at a coverage region of the activated motion sensor 4 having the higher priority.
  • the image capture module 104 captures real-time images of the target region using the image capture device 3 , and store the captured images in the storage system 11 . Additionally, if the monitored area needs to be viewed, the image capture module 104 further displays the captured images on the display screen 12 .
US13/077,997 2010-09-24 2011-04-01 Surveillance system and method Active 2032-06-10 US8717439B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201010289457 2010-09-24
CN2010102894570A CN102413274A (zh) 2010-09-24 2010-09-24 影像监控设备及影像监控方法
CN201010289457.0 2010-09-24

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US20120075468A1 US20120075468A1 (en) 2012-03-29
US8717439B2 true US8717439B2 (en) 2014-05-06

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US8773501B2 (en) * 2011-06-20 2014-07-08 Duco Technologies, Inc. Motorized camera with automated panoramic image capture sequences
US10076109B2 (en) 2012-02-14 2018-09-18 Noble Research Institute, Llc Systems and methods for trapping animals
CN103581527B (zh) * 2012-07-18 2017-05-03 中国移动通信集团公司 一种安防系统中的跟踪摄像方法、装置及安防主机
CN104349031B (zh) * 2013-07-31 2018-05-18 华为技术有限公司 一种调整摄像装置的取景范围方法及摄像系统、操作装置
US20160277688A1 (en) * 2015-03-18 2016-09-22 The Samuel Roberts Noble Foundation, Inc. Low-light trail camera
CN104811595A (zh) * 2015-04-08 2015-07-29 合肥君正科技有限公司 一种网络监控摄像机及其工作方法
CN106341665A (zh) * 2016-09-30 2017-01-18 浙江宇视科技有限公司 一种跟踪监控方法及装置
CN107610389B (zh) * 2017-09-12 2020-04-17 中广热点云科技有限公司 一种广播电视发射台的监控方法
CN109688376B (zh) * 2018-12-18 2020-11-10 深圳市全智芯科技有限公司 人体感应监控方法、存储介质、安防摄像系统及装置
CN113225525B (zh) * 2021-04-01 2022-07-29 北京戴纳实验科技有限公司 一种室内监控方法及系统
US20230319415A1 (en) * 2022-04-01 2023-10-05 Honeywell International Inc. Method and system for using a plurality of motion sensors to control a pan-tilt-zoom camera

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CN2624190Y (zh) * 2003-06-11 2004-07-07 深圳清华大学研究院 摄像型人体红外测温装置
CN201178470Y (zh) * 2008-04-15 2009-01-07 北京中大育盟教育科技有限公司 视频自动跟随装置
CN101571711B (zh) * 2008-04-28 2010-12-15 同方威视技术股份有限公司 用于开放式辐射场所的监视系统
CN101511000B (zh) * 2009-02-27 2011-02-16 中山大学 一种利用声波定位的智能监控摄像头装置

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US20060238618A1 (en) * 2005-04-20 2006-10-26 Wren Christopher R Context aware surveillance system using a hybrid sensor network

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CN102413274A (zh) 2012-04-11

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